Dual-Layer Electrode Display Substrate for Wide Viewing Angles
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Solution Overview
Problem
Existing display substrates for liquid crystal display panels have limited viewing angles due to pressure design limitations in controlling liquid crystal deflection, which fails to meet the increasing consumer demand for wider viewing angles.
Innovation Solution
A display substrate design that includes an array substrate, a first electrode layer with insulated adjacent electrodes, an insulation layer, and a second electrode layer with branch electrodes, allowing for different voltage inputs to control liquid crystal deflection at various angles, thereby enhancing viewing angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multi-domain vertical alignment technology is used to divide pixels into multiple domains, then viewing angle performance is improved, but device complexity increases
Solution Approach 1:
The pixel is divided into multiple domains (e.g., four domains) with different liquid crystal orientation directions. Each domain is controlled by separate electrode structures (first and second electrodes with different patterns), allowing independent voltage application to achieve different liquid crystal deflection angles in each domain, thereby improving viewing angle performance while managing complexity through systematic segmentation
Solution Approach 2:
The patent introduces a dual-layer electrode structure (first electrode layer and second electrode layer) with different patterns and orientations. The first electrode has a first pattern while the second electrode has a second pattern that is different from the first pattern. This multi-dimensional electrode arrangement creates complex electric field distributions that control liquid crystal molecules in different domains to orient in different directions, achieving wide viewing angles without excessive pressure design complexity
2Adaptability or versatility
If adjacent first electrodes are insulated from each other to control liquid crystal deflection, then viewing angle is improved, but manufacturing precision requirements increase
Solution Approach 1:
An insulation layer is introduced between the first electrode layer and the second electrode layer to prevent electrical connection between adjacent first electrodes. This intermediary insulation structure ensures electrical isolation while maintaining the structural integrity and alignment of the multi-layer electrode system, enabling precise control of liquid crystal deflection in each domain without excessive manufacturing precision requirements
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The proposed display substrate design significantly improves the viewing angle of liquid crystal display panels by allowing liquid crystals to deflect at different angles, thus addressing the limitations of existing technologies.
Implementation Method 1
different voltages are input to the first electrode layer and the second electrode layer respectively, so that liquid crystals in different domains deflect at different angles
Implementation Method 2
the liquid crystal in each domain is oriented in different directions after a voltage is applied thereto, so that the display effects in respective directions tend to be uniform and even
Data Source
AI summary
Provided is a display substrate and a liquid crystal display panel. The display substrate includes an array substrate, a first electrode layer, an insulation layer, and a second electrode layer arranged in sequence, the first electrode layer includes a plurality of first electrodes arranged spaced apart from each other, at least two adjacent first electrodes are insulated from each other, and the second electrode layer includes a plurality of second electrodes arranged spaced apart from each other, and the plurality of second electrodes are arranged in a one-to-one correspondence with the plurality of first electrodes.